A nurse is collecting data from a newborn who has respiratory distress syndrome and is experiencing respiratory acidosis. Which of the following risk factors predisposes the newborn to respiratory difficulties?
Small for gestational age.
Maternal history of asthma.
Ventricular septal defect.
Cesarean birth.
The Correct Answer is A
Choice A reason:
Small for gestational age (SGA) newborns are at risk for respiratory distress syndrome (RDS) and respiratory acidosis because they have immature lungs that produce less surfactant, which is needed to keep the alveoli open and prevent atelectasis. SGA newborns also have less glycogen stores, which can lead to hypoglycemia and impaired oxygen delivery to the tissues.
Choice B reason:
Maternal history of asthma is not a risk factor for RDS or respiratory acidosis in the newborn. Asthma is a chronic inflammatory disorder of the airways that affects the mother, not the fetus. Maternal asthma can cause complications such as preterm labor, preeclampsia, or intrauterine growth restriction, but it does not directly affect the fetal lung development or function.
Choice C reason:
Ventricular septal defect (VSD) is a congenital heart defect that causes a hole in the wall between the ventricles of the heart. This can result in increased pulmonary blood flow and pressure, which can lead to pulmonary edema and heart failure in the newborn. However, VSD does not cause RDS or respiratory acidosis, which are related to lung maturity and surfactant production.
Choice D reason:
Cesarean birth is not a risk factor for RDS or respiratory acidosis in the newborn. Cesarean birth can increase the risk of transient tachypnea of the newborn (TTN), which is caused by delayed absorption of fetal lung fluid. TTN usually resolves within 24 to 48 hours and does not cause a significant acid-base imbalance in the newborn.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","F"]
Explanation
Choice A:
Temperature is not a finding that needs to be reported to the provider unless it is abnormally high or low. The normal temperature range for a newborn is 36.5°C to 37.5°C (97.7°F to 99.5°F).
Choice B:
Respiratory findings are not a finding that needs to be reported to the provider unless they indicate respiratory distress or infection. The normal respiratory rate for a newborn is 30 to 60 breaths per minute.
Choice C:
Serum glucose is a finding that needs to be reported to the provider, as it is higher than the normal range for a newborn. The normal serum glucose level for a newborn is usually just under 2 mmol/L (or 25 mg/dL) at birth, and it will rise to over 3 mmol/L (or 60 to 100 mg/dL) within two to three days. A serum glucose level of 130 mg/dL indicates hyperglycemia, which can have various causes and complications.
Choice D:
Hematocrit is a finding that needs to be reported to the provider, as it is lower than the normal range for a newborn. The normal hematocrit level for a newborn is 44% to 64%. A hematocrit level of 35% indicates anemia, which can have various causes and complications.
Choice E:
White blood cell count is not a finding that needs to be reported to the provider, as it is within the normal range for a newborn. The normal white blood cell count for a newborn is 9,000 to 30,000/mm³.
Choice F:
Hemoglobin is a finding that needs to be reported to the provider, as it is lower than the normal range for a newborn. The normal hemoglobin level for a newborn is 14 to 24 g/dL. A hemoglobin level of 9 g/dL indicates anemia, which can have various causes and complications.
Correct Answer is C
Explanation
Choice A reason:
Intermittent abdominal pain following passage of bloody mucus is not a sign of placenta previa, but rather of bloody show, which is a normal occurrence in late pregnancy as the cervix begins to dilate and efface.
Choice B reason:
Abdominal pain with minimal red vaginal bleeding is not a sign of placenta previa, but rather of abruptio placentae, which is a serious complication where the placenta detaches from the uterine wall before delivery.
Choice C reason:
A large amount of bright red vaginal bleeding without pain is a sign of placenta previa, which is a condition where the placenta covers part or all of the cervical opening. This can cause bleeding when the cervix dilates or contracts, especially in the third trimester. This is a medical emergency that requires immediate attention.
Choice D reason:
Severe abdominal pain with increasing fundal height is not a sign of placenta previa, but rather of uterine rupture, which is a rare but life-threatening complication where the uterus tears open along the scar line from a previous cesarean delivery or other uterine surgery. This can cause severe bleeding, fetal distress, and shock.
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